US 10,209,303 B2Granted

Signal processing apparatus

AssigneeDenso Corporation

InventorsTetsuya Kimata, Akira Nakashima

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Abstract

A signal processing apparatus includes a recording unit, an operation unit, a processing unit and an abnormality detector. The recording unit records configuration data therein. The operation unit performs arithmetic and logical operations on an input signal and outputs an operation signal indicative of the result of the operations. The operation unit has a circuit configuration defined by the configuration data recorded in the recording unit. The processing unit acquires the operation signal outputted from the operation unit, produces an output signal based on the acquired operation signal and outputs the produced output signal. The abnormality detector detects an abnormality of the circuit configuration of the operation unit. Moreover, in the signal processing apparatus, the processing unit is configured to further acquire an abnormality detection result from the abnormality detector after the acquisition of the operation signal and output the output signal depending on the abnormality detection result.

Claims12

Dependent claims

A vehicle control system for controlling a vehicle to provide a vehicle control based on objects detected in an environment of the vehicle, the control system comprising:

one or more vehicle control devices mounted on the vehicle and configured to receive an output signal and perform the vehicle control based on the output signal;
one or more sensors mounted on the vehicle and configured to detect an object in the environment of the vehicle and generate an input signal based on the object detected;
a signal processing apparatus configured to receive the input signal based on the object detected and produce the output signal for performing the vehicle control, the signal processing apparatus comprising:
a recording means for recording configuration data therein;
an operation means for performing arithmetic and logical operations on the input signal based on the object detected and outputting an operation signal indicative of a result of the operations, the operation means having a circuit configuration defined by the configuration data recorded in the recording means;
an abnormality detection means for detecting an abnormality of the operation means and outputting an abnormality detection result, the abnormality detection means having a maximum required detection time that is less than a preset waiting time;
a processing means for acquiring the operation signal outputted from the operation means and acquiring the abnormality detection result from the abnormality detection means, the processing means producing the output signal based on the operation signal and outputting the output signal after the preset waiting time from the acquisition of the operation signal such that an abnormality of the operation means is detected by the abnormality detection means before the processing means outputs an output signal based on the abnormality of the operation means,
wherein in response to detecting an abnormality of the operation means, the processing means prevents a target vehicle control signal for controlling a target vehicle control device from being outputted as the output signal to the target vehicle control device,
wherein the vehicle control includes at least one of a steering control, an engine control, a vehicle lamp control, a lane departure warning control, a collision avoidance control and a warning control.

6 more elements

A method of controlling a vehicle to provide a vehicle control based on objects detected in an environment of the vehicle, the method comprising:

detecting, by one or more sensors mounted on the vehicle, an object from an environment of the vehicle;
generating an input signal based on the object detected;
recording, by recording means, configuration data;
performing, by an operation means, arithmetic and logical operations on the input signal based on the object detected and outputting an operation signal indicative of a result of the operations, the operation means having a circuit configuration defined by the configuration data recorded in the recording means;
detecting, by an abnormality detection means, an abnormality of the operation means and outputting an abnormality detection result, the abnormality detection means having a maximum required detection time that is less than a preset waiting time;
acquiring, by processing means, the operation signal outputted from the operation means and acquiring the abnormality detection result from the abnormality detection means, producing an output signal based on the operation signal and outputting the output signal after the preset waiting time from the acquisition of the operation signal such that an abnormality of the operation means is detected by the abnormality detection means before the processing means outputs an output signal based on the abnormality of the operation means,
wherein in response to detecting an abnormality of the operation means, the processing means prevents a target vehicle control signal for controlling a target vehicle control device from being outputted as the output signal to the target vehicle control device;
receiving, by one or more vehicle control devices mounted on the vehicle, the output signal;
and
performing the vehicle control based on the output signal,
wherein the vehicle control includes at least one of a steering control, an engine control, a vehicle lamp control, a lane departure warning control, a collision avoidance control and a warning control.

8 more elements

Dependencies are inferred from the claim text.

Facts

Application: 14/802,484Filed 17 Jul 2015
Priority: JP 2014-14815618 Jul 2014
Published: US 2016/0018463 A121 Jan 2016
Granted: 19 Feb 2019
Term ends: Not estimatedThe source records don’t support an estimate.

Classification7 codes

G01R 31/3177
Testing of digital circuits: testing of logic operation, e.g. by logic analysers
B60T 7/22
For automatic initiation; for initiation not subject to will of driver or passenger: initiated by contact of vehicle, e.g. bumper, with an…
G01R 31/31703
Testing of digital circuits: comparison aspects, e.g. signature analysis, comparators
B60T 2201/022
Active or adaptive cruise control system; Distance control: collision avoidance systems